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Manley Performance

Subaru WRX STi 04+ (EJ257) Forged Pistons Manley Performance

Article nr:
var-MANSUBEJ257
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1158 - 1470 EUR
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  • Product description
  • Manley Performance Forged Pistons – Built for Extreme Engine Builds

    Manley Performance is one of the most respected names in forged performance pistons. Here you will find all Manley piston options for the selected engine, allowing you to easily choose the correct piston based on your build requirements using the selection lists. All pistons are supplied as complete sets including wrist pins and piston rings, and are suitable for both turbocharged and naturally aspirated engines depending on configuration.

    1. Bore Diameter

    Select the bore diameter that matches your engine block. Oversize bores are intended for engine rebuilds where the cylinders have been bored or honed.

    2. Standard or Stroker

    Select whether the engine uses a standard or modified stroke. Standard is used with the original crankshaft. Stroker or De-stroked is used when the stroke length has been changed. Selecting the correct option is critical for proper fitment.

    3. Series

    Manley offers different piston series depending on power goals and operating conditions. Platinum Series is optimized for high performance with reduced weight. Turbo Tuff is designed for extreme power levels and high boost applications.

    4. Compression Ratio

    Select the desired compression ratio for your engine build. Lower compression provides greater margin for high boost. Higher compression improves throttle response and efficiency. Compression ratios are engineered by Manley for each specific engine and piston design.

    5. Coating

    Select whether the pistons should be supplied with Manley Performance coating. The coating reduces friction and wear, while improving reliability under high load and high power conditions. Without coating is the standard configuration. With coating adds additional protection for demanding applications

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    Technical specification

    Article nr:
    var-MANSUBEJ257
    Manufacture Partnumber: 612000C-4 , 612001C-4 , 612002C-4 , 612005C-4 , 612100C-4 , 612102C-4 , 612105C-4 , 621000C-4 , 621002C-4 , 621005C-4 , 621100C-4 , 621102C-4 , 621105C-4 , 622000C-4 , 622002C-4 , 622005C-4 , 622102C-4 , 622105C-4 , 632000C-4 , 632002C-4 , 632002CE-4 , 632005C-4 , 632100C-4 , 632102C-4 , 632400C-4 , 632400CE-4 , 632402C-4 , 632402CE-4 , 632405C-4 , 632405CE-4 , 632500C-4 , 632502C-4 , 632502CE-4 , 632505C-4 , 632505CE-4 , var-SUBEJ257
    Weight: 379 gram , 383 gram , 386 gram , 389 gram , 393 gram , 395 gram , 396 gram , 398 gram , 402 gram , 415 gram , 418 gram , 419 gram , 423 gram , 424 gram , 425 gram , 426 gram , 428 gram , 429 gram , 434 gram , 438 gram , 439 gram , 444 gram , 448 gram , 462 gram , 465 gram , 469 gram , 475 gram
    Bore Diameter: 100.00 MM , 99.50 MM , 99.55 MM , 99.75 MM
    Bore Oversize: +0.05 MM , +0.25 MM , +0.50 MM , Stock
    Compression Height: 1.130 IN , 1.209 IN , 1.285 IN
    Compression Ratio: 8.50:1 CC , 9.80:1 CC
    Engine code: Subaru 2.5L EJ257 WRX STi
    Piston Head Type: Dish , Flat Top
    Piston Quantity: 4
    Piston Series: Platinum Series , Turbo Tuff
    Piston Volume: -10.00 CC , -14.00 CC , -18.00 CC , -22.00 CC , -26.00 CC , -6.00 CC
    Stroke: 75.00 mm , 79.00 mm , 83.00 mm
    Stroke type: 2.35L De-Stroked , 2.7L Stroker , Stock
    Wrist Pin Style: Dish , Flat Top
    Product type: Engine Piston Kit
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  • Manley Performance

    Manley Speed Equipment, Inc. Founded in 1966 by Hank Manley shortly after his graduation from Brown University. His great interest in performance cars and racing was founded in his 312 CID Ford V8 he built and raced on the streets of New Jersey. Shortly thereafter, the development of Manley Performance Products began, now valves, pistons, lifters, push rods and valve springs began to be manufactured.

    Since this beginning, Manley has become one of the world's largest and leading players in engine parts. You will find them all over the world, both on street cars and in the absolute highest racing series. Manley also manufactures OEM parts, which you will therefore find in our standard car models. That trust guarantees quality!

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